These are needed to replace those that die after an average life span of 10 years. All the stations were done for approximately 1 minute for the first 2 sessions. A fourth serous membrane, the peritoneum, lines the peritoneal cavity, covering the abdominal organs and forming double sheets of mesenteries that suspend many of the digestive organs. White adipose tissue and brown adipose tissue differ in function as well as cellular structure. It can be considered as a barrier, and things can selectively pass across this barrier. But when there is load, they stretch and become flat to accommodate the substance urine. In some tissues, the cells may be similar and in some, the cells may be different.
It is present in the margin of leaves and resists tearing effect of the wind. Connective tissue binds the various parts of the body together, providing support and protection. Epithelial tissue helps to protect organs from microorganisms, injury, and fluid loss. In addition to this protective function, epithelial tissue may also be specialized to function in , and. This type of fibre is seen only in the wall of heart. Stratified columnar epithelium with column shaped cells in layers 4. Simple Epithelia Simple epithelium consists of a single layer of cells.
Remember the skin is epithelial tissue. Muscle is found throughout the body and even includes organs such as the heart. Located in blood vessels, the bladder, and digestive tract. Each fibre is enclosed within a sheath called sarcolemma. Ciliated epithelium is found in the airways nose, bronchi , but is also found in the uterus and fallopian tubes of females, where the cilia propel the ovum to the uterus. The Examples, Functions, Structures and Pictures of the Main Types of Tissues of the body listed above will be described briefly and each would be described in details in other articles.
Various Configurations of Epithelial Tissue Connective Tissue As its name suggests, connective tissue makes up a connective web inside our body. They help in contraction and relaxation of man organs like lungs, stomach, uterus etc. Gives strength, support, and protection to the soft parts of the body. Because the stratus cloud is low it too has a base below 7,000 feet and is made of mostly water droplets. This type of connective tissue is found in tendons and ligaments.
Fibrous connective tissue includes tendons and ligaments. It is classified into dense connective, loose connective, reticular, elastic, and adipose. The coagulation of blood prevents excess loss of blood from the injured region. These differences are described on a separate page. These results demonstrate that whatever may be the nature of specificity it exists at tissue grade and not at species level.
A unipolar nerve is formed when the proximal ends of an axon and a dendrite emerge out from the cell body. It was formerly thought that synapse involves a complete fusion between a fibre of axon and dendrite. The four major classes of simple epithelium are: 1 simple squamous; 2 simple cuboidal; 3 simple columnar; and 4 pseudostratified. Nervous Tissue- this tissue is responsible for sending and receiving messages from muscle tissue to the brain. This fluid tissue is made up of a liquid base which supports additional types of cells, including red and white blood cells. These clouds can produce lightning, thunder, heavy rains, strong winds, and tornadoes.
This meristem is responsible for the linear growth of an organ. Epithelial tissue is exposed to the most trauma and is constantlybeing regenerated epithelial cells divide more rapidly thanothers. It holds organs in their place and binds epithelial tissue to other underlying tissues. Another of the types of connective tissue is blood. Critical Thinking Questions Identify the four types of tissue in the body, and describe the major functions of each tissue.
Epithelial tissue is made of layers of cells that cover the surfaces of the body that come into contact with the exterior world, line internal cavities, and form glands. There are eight basic types of epithelium: six of them are identified based on both the number of cells and their shape; two of them are named by the type of cell squamous found in them. The pit pairs allow water to pass from cell to cell. They can be up to few meters. The yellow marrow contains fatty tissues and does not produce blood cells. There is another type called transitional epithelium.
There are different types of tissues in the human body; other animals and plants have tissues too but theirs will be described in another article. The skeletons of human embryos are composed of cartilage. C Prismatic or Columnar—The simple columnar tissues include tall cells with distinct elongated nucleus, e. The nerves, intrinsic blood vessels, and connective tissue of the heart comprise the stroma. Pseudostratified epithelium can also possess fine hair-like extensions of their apical luminal membrane called cilia. Embryonically, muscle derives from mesoderm or mesenchyme.